Home / 42,747,897.60-64,129,622.40-13,986,028.80

Finding the Fourth Proportional to 42,747,897.60, 64,129,622.40 and 13,986,028.80

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Solution

The fourth proportional to 42,747,897.60, 64,129,622.40 and 13,986,028.80 is: 20,981,587.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,747,897.60 : 64,129,622.40 = 13,986,028.80 : x
  2. Step 2: Convert to fraction form
    42,747,897.60/64,129,622.40 = 13,986,028.80/x
  3. Step 3: Cross multiply
    42,747,897.60x = 64,129,622.40 × 13,986,028.80
  4. Step 4: Simplify right side
    42,747,897.60x = 896,918,745,819,525.12
  5. Step 5: Solve for x
    x = 896,918,745,819,525.12/42,747,897.60
  6. Step 6: Final answer
    x = 20,981,587.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.